A spatial-temporal distribution characteristics of the atmospheric methane in troposphere on Qinghai-Tibetan plateau using ARIS data
FENG Dong-xia1,2,3, GAO Xiao-qing1, YANG Li-wei1, HUI Xiao-ying1, ZHOU Ya1,2
1. Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Department of Integrated Observations, China Meteorological Administration, Beijing 100081, China
It was presented that a contrastive study on the AIRS retrieval results and the observational data of methane concentration at Waliguan atmospheric background station, and was analyzed that the distribution variation characteristics of atmospheric methane concentration over the Qinghai-Tibet Plateau from 2003 to 2015. It was showed that the AIRS retrieval data displayed the same monthly, annual and seasonal variation trend, as well as segmental variation characteristics, with those of Waliguan station. The methane concentration was featured high in the southeast and low in the northwest along with the geographical line of the east edge of Qiangtang Plateau-the northwest region of Resource of Three rivers, and decreased significantly as the altitude rose, with the highest and the most sensitive variability in the south central region of the Qinghai-Tibet Plateau. From 2003 to 2015, the methane concentration in the Qinghai-Tibet Plateau continued to rise, with the fastest growth in autumnand the slowest in winter, at an annual growth rate of 5.2nmol/(mol·a), while the growth rate from 2013 to 2015 was lower than the global average. The seasonal variation showed a unimodal curve, with the highest value in summer and the lowest value in spring, and with the altitude rising, the seasonal variation was more significant.
冯冬霞, 高晓清, 杨丽薇, 惠小英, 周亚. AIRS反演青藏高原对流层大气甲烷分布特征[J]. 中国环境科学, 2017, 37(8): 2822-2830.
FENG Dong-xia, GAO Xiao-qing, YANG Li-wei, HUI Xiao-ying, ZHOU Ya. A spatial-temporal distribution characteristics of the atmospheric methane in troposphere on Qinghai-Tibetan plateau using ARIS data. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(8): 2822-2830.
Solomon S, Qin D, Manning M, et al. Climate change 2007:The physical science basis, contribution of working group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change[M]. New York:Cambridge University Press, 2007:500-590.
[2]
Thomas Stocker, Qin Dahe, Gian-Kasper Plattner, et al. Climate change 2013:The physical science basis, working group I Contribution to the Fifth Assessment Report (AR5) of IPCC[M]. New York:Cambridge University Press, 2013:20-309.
[3]
Grutzen P J. On the role of CH4 in atmospheric chemistry:Sources,sinks and possible reductions in anthropogenic sources[J]. Ambio, 1995,24(1):52-55.
WMO Greenhouse Gas Bulletin. The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2016[EB/OL]. http://ds.data.jma.go.jp/gmd/wdcgg/.
[6]
Etiope G, Beneduce P, Calcara M, et al. Structural pattern and CO2-CH4 Degassing of Ustica Island Southern Tyrrhenian Basin[J]. Journal of Volcanology and Geothermal Research, 1999,88:291-304.
[7]
Etiope G, Klusman R W. Geologic emissions of methane to the atmosphere[J].Chemosphere, 2002,49:777-789.
[8]
Mastepanov M, Sigsgaard C, Dlugokencky E J, et al. Large tundra methane burst during onset of freezing[J]. Nature, 2009,460(7255):616-619.
Xiong X, Weng F, Liu Q, et al. Validation of airs version6 methane retrievals using aircraftobservations[J]. Atmospheric Measurement Techniques Discussion, 2015,8:8563-8597.
[20]
Xiong Xiaozhen, Han Yong, Liu Quanhua, et al. comparison of atmospheric methane retrievals from ARIS and IASI[J]. IEEE journal of selected topics in applied earth observation and remote sensing, 2016,9(7):3297-3303.
[21]
Xiong X, Hou weling, Wei J, et al. Methane plume over south Asia during the monsoon season:satellite observation and model simulation[J]. Atmos. Chem. Phys., 2009,9:783-794.
